Door-lock.



0. KNUDSEN.

DOOR LOCK. APPLICATION FILED SEPT. 26, 1912.

Patntea Dec. 2, 1913.

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COLUMBIA PLANOGRAFH c0.. WASHINGTON. D, c

h To all whom it may concern:

UNITED STATES PATENT OFFICE.

CHRISTIAN mvtinsn i ofiroiirinivn, OREGON.

DOOR-LOCK.

Specification of lletters Patent.

emittanc -2.191

7 Application filed September '26, 1912. Serial No. 722,508.

Be it known that I, Gfi z'Isri N Kminsnn, a citizen of the United States, residing in the city off Portland, ceilnty of Multnoitiah,

and State of Oregon, have invented 'oertain new and useful 'II'nprov ernen' ts in Door- Locks, of which the following is a specification.

My invention relates to door ,lbcks, and more particularly to certaidimprovernents in the construction a arrangement of the parts of a door lock whereby one of the knobs thereof canJoe moyedbodily relative to the ,other knobfor thef'purpos e of disconnecting the latter. from ,the'bolt operating n echanism, and whereby to greatly t he attacl irnen-tbf said lock to a door. I Among the salient objects of the inven tion are, to' provide in a door look a construction whereby a round bored 2 through the door transversely, near the edge thereof, and a round hole bored into theedge of the door so as to intersect the other 'hole,'is' (all the preparation of the door that is required .for' they attachment of'the lock to the door, thu s' avoiding the necessity of sawing or chiseling the door in order to prepare it .to receive the loekgto provide a door lock which a bolt receiving casing, insertedin'to the edge of the door, intersects aknob-bar casing at right angles thereto, wh y th .kni eb when n pl ce; bpera tively interseots thebolt'iof said casing; to provide inia' door look ,a construction whereby a slight Inovenieiit ofone of its knobs bodily operates to render theother knob inopera ive ior manipulating the .boltfto provide in combination with sucha door look a key for insertion through said inoperativexknob'wherebyr to operatively connect it with the bolt-operating Inechanism, and, in general, to provide an improved and practicable lock of the character referred to.

' Inorder that others may'unde rst'and my invention, Ihave shownonthe accompanying sheet of drawings onepractical embodi ment thi reof which'T will now describe.

In the drawings,Figurel is a plan view of .one embodiment ,of the invention; Fig.

2 .is a longitudinal sectional view thereof;

Fig. 3 isa 'sectional view through the bolt casing,.taken on line 3 3 of',Fig.j2, showing the bolt drawn into thebolt casing; Fig. 4 is a similarview,,in part, showing the position of the p arts when the bolt is extended;

7 Within the bolt casing;Fig. 5 is a cross secends thereof and abolt casing eadapted in a the presentshowing'to be screwed into the knob-bar casing 1, at "right angles thereto, as clearly indicated in Figs. land 2. The knob-bar casing, asshown, is composed of two parts l and 1 the part 1 being screwed into the'part 1*, as at 1. Mounted upon said parts are two roseplates 5+5, bearing against annular shoulders 6-6, formedon'said parts 1 and 1 said'ros'e plates being adapted to be pressed against the opposite sides of the door as said knobbar casing isappliedthereto. The part 1 of said casingis provided with inner attaching member 7, having annular'shoulder 8 formed upon its inner end, and threaded at its 'outer'erid to receive the interiorly threaded shank orn eck' portion of the knob 2,whereby said knob 2i's thus rotatably secured to the knob bar' dasing. The knob 2 is provide d' in' ift s interior with an inwardly projecting bar secured thereto and adapted to turntherewith, said ba r 9 being provided with a longitudinallyextending slit as shown in Fig. 7, also, at its' inner end, transversely of said slit, with a cut 9", Fig.2; The knob '2 is provided in its outer end with key opening 10"th erethrough, adapted to register with the slit 9 in said member or bar 9. Knob 3 at the opposite end of said'knob-bar casing 1 is provided Withan overlyinglneckportion 3 which fits over 'the outer end of saidpart 1 of said casing 1. Said fknob lalso carries a shank'll, provided with two annular grooves'12 and .18, and terminates in a "knob bar 14;,"having a flat sidefas indicated in Figs. 2,3 and 4, and provided at its inner end with a reduced portion 15, adapt'ed to fit into the out 9" made in the inner end of the bar 9, as indicated in Fig. [2,,whn "said knob-bar le' is fully inserted intothe knob-bar casing 1. Thebody portion ofsaid'knob-bar 14, adjacent said reduced end portion 15,

' parts are in the position shown in full lines in Fig. 2, it will be noted that the parts are all connected so that by turning either of the knobs 2 and 3, the knob-bar 14 is turned.

This is by reason of its interfitting engage ment at its inner end with thebar'9, which turns with the knob 2. If now the pawl 17 be sprung and the knob 3 be pulled outwardly a short. distance, as indicated in dotted lines, and so that the pawl 17 engages in the annular groove 12, the inner end of said knob-bar 14 is disconnected from the end of the bar 9, so that if knob 2 be turned it will not turn the knob-bar 14, but will simply turn loosely upon the outer end. of the casing 1.

In order to turn the bar 14 by means of theknob 2, from the outside, for example, it is necessary to insert a special key, illustrated in Fig. 8, through said knob 2, and through the slit 9 of the bar 9 and into the slits 16 in the bar 14, at opposite sides of the reduced end portion 15 thereof. Said key is provided with prong or finger portions for this purpose and these can be varied in size, shape and thickness to correspond with the kind of slits or cuts made in the end of the knob-bar 14. When the key is thus inserted through knob 2 and into engagement with the inner end of the knob-bar 14, it forms a connection between the bar 9 and the bar 14, whereby the latter can be turned by means of knob '2 from the outside.

The bolt casing 4 comprises a tubular member threaded exteriorly at one end and screwed into the knob-bar casing 1, at right angles thereto, in the manner indicated. Said bolt casing is provided with a transverse opening adapted to register with the opening through said knob-bar casing 1, when the parts are assembled in the positions shown. Mounted Withinthe bolt casing 4 is a bolt 18 provided with two openings 19 and 20 therethrough at its inner end and extending transversely of, and intersecting, each other, as indicated in Figs. 1,

3 and 4. Mounted within said openings is a small operating member or element 21, having an opening 22 therethrough adapted to register with the opening 20 in the bolt 18, whereby to receive the knob-bar 14, and also it is provided with operating sl1oulders 23 and 24, which rest within the openings 19 in said bolt 18. The opening 22 through said operating element 21 is made fiat at one side, as indicated, to fit the fiat side of the knob-bar 14, whereby the turning of said bar 14 operates to turn said operating element 21 from the position shown in Fig. 4, to theposition shownin Fig. 3, during which movement it engages the bolt 18 in the rear of the opening 19 thereinand draws said bolt within the 'bolt casing 4,'as indicated in Fig. 3. It is to be understood, of course, that said knob bar can be turned in either direction and the result will be the same. "A coiled spring '25 in the rear of the bolt casing 4 operatesto keep said bolt normally extended.

A bolt-receiving cap or pocket 26 is pro- .vided to fit into the door frame to receive the outer end of the bolt 18. This memher is round, with a flange portion 27, and

is exterior ly threaded as at 28 in order'to be screwed into a round hole bored into the door frame. In' order to facilitate the plac ing of said bolt-receiving element in the door frame,iit is provided in its bottom with a socket 29, 'whereby an ordinary screw-driver can be used to place it. The bolt-receiving socket of said element is preferably made slightly oblong, as shown, in order to make provision for any settling or sagging of the door. V p 7 From the foregoing, it will be seen that it is only necessary to bore a round hole through the door, large enough to receive the knob-bar casing 1, and to bore another round hole into the edge of the door to intersect said first hole,'and large enough to receive the bolt casing 4, and the lock can be applied to the door without further alteration or preparation of the door. It will also be notedthat by pulling the knob 3 to the position shown in dotted lines, the

not, therefore, limit the invention to the particular showing here made, except as I may be-limited by the hereto appended claims.

I claim: V

1. A door lock comprising in combination, a cylindrical knob-bar casing, knobs and knob-bar rot-atably mounted therein, a cylindrical bolt casing connected through said knob-bar casing at right angles therewith, and a bolt slidably mounted in said 7 bolt casing and having intersecting operative connections with said knobbar, one of said knobs being movable bodily With operative connections for rendering the other knob inoperative.

I 2. A door lock of the character referred to comprising in combination a two-part cylindrical casing, a cylindrical bolt casing screwed thereinto and extending therethrough at right angles thereto, a bolt in said bolt casing, a knob-bar, With knobs, Within said two-part casing, and extending through said bolt casing and bolt, With operative connections With the latter, one of said knobs being adapted to be disconnected from said knob-bar by the bodily movement of the other knob, and means for holding said parts in their differentpositions of adjustment.

3. In a door lock,'a cylindrical two-part casing With rose plates, and adapted to be screwed together through the door, a cylindrical bolt casing intersecting said tWopart casing and passing therethrough at right angles thereto, a bolt in said bolt casing, a knob-bar With knobs in said tvvo-part casing and operatively connected With said bolt Within said bolt casing, one of said knobs being movable with the knob-bar relative to the other knob to render the latter inoperative, and a key for connecting the inoperative knob With the knob-bar.

4. A door lock comprising in combination, a knob-bar casing, a knob-bar With knobs rotatably mounted therein, a bolt casing intersecting said knob-bar casing and screwed therethrough at right angles thereto, a bolt therein, operative connections between said knob-bar and said bolt, one of said knobs and said knob-bar being movable bodily out of operative connections With the other knob for rendering said other knob inoperative, and a key for putting said inoperative knob into operative connection With said knob-bar and bolt.

5. A door lock comprising in combination a two-part cylindrical casing With rose plates, a cylindrical bolt casing intersecting said two-part casing, a bolt for said bolt casing, a knob-bar with knob inserted into said two-part casing and into operative connection With said bolt, a knob rotatably mounted on the other end of said two-part casing and'having a slotted bar extending into said two-part casing and adapted to be operatively connected end to end With said knob-bar, said knob and knob-bar being movable bodily into and out of operative connect-ions With said bar, and a key for insertion through said rotatably mounted knob for operatively connecting it With said bodily moved knob and knob-bar, substantially as shown.

Signed at Portland, Multnomah county, Oregon, this 20th day of Sept. 1912.

CHRISTIAN KNUDSEN. In presence of- Gr. ELSPAS, G. A. NIoHoLs.

Copies of this patent may be obtained for five cents each, by addressing. the Commissioner of Yatents, Washington, D. G. 

